uncommon evocation magus 

Cast [>] verbal; Requirements You're wielding a staff.

You spin your staff with a twirling flourish, attacking two foes and transforming the momentum into magical energy to charge for your next Spellstrike. Make a melee Strike with your staff against one foe and then a second melee Strike with your staff against a different foe. Your multiple attack penalty applies to both of these attacks as normal.

Secrets of Magic, page 144.